ACPI Audio Compositor Driver - Windows 11 Service
ACPI Audio Compositor Driver by Microsoft Corporation.
This service exists in Windows 11 only.
Startup Type
| Windows 11 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 21H2 | not exists | not exists | not exists | not exists |
| 22H2 | not exists | not exists | not exists | not exists |
| 23H2 | not exists | not exists | not exists | not exists |
| 24H2 | not exists | not exists | not exists | not exists |
| 25H2 | Manual | Manual | Manual | Manual |
| 26H1 | not exists | not exists | not exists | not exists |
| 26H2 | Manual | Manual | Manual | Manual |
Default Properties
| Display name: | ACPI Audio Compositor Driver |
| Service name: | AcpiAudioCompositorInbox |
| Type: | kernel |
| Path: | %WinDir%\System32\DriverStore\FileRepository\acpiaudiocompositor.inf_amd64_3a22a3df84b6fbc6\AcpiAudioCompositor.sys |
| Error control: | normal |
Default Behavior
The ACPI Audio Compositor Driver service is a kernel mode driver. If ACPI Audio Compositor Driver fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the AcpiAudioCompositorInbox service has failed to start.
Restore Default Startup Type for ACPI Audio Compositor Driver
Automated Restore
1. Select your Windows 11 edition and release, and then click on the Download button below.
2. Save the RestoreACPIAudioCompositorDriverWindows11.bat file to any folder on a local drive such as SSD or a hard disk.
3. Right-click the downloaded batch file and select Properties.
4. Check the Unblock checkbox and click OK.
5. Right-click the batch file again and select Run as administrator.
6. Restart the computer to save changes.
Note. Make sure that the AcpiAudioCompositor.sys file exists in the %WinDir%\System32\DriverStore\FileRepository\acpiaudiocompositor.inf_amd64_3a22a3df84b6fbc6 folder. If this file is missing you can try to restore it from your Windows 11 installation media.